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Operator Proficiency Training Board
in NASA
Operational Program Time Base
in NASA
128264128265
Similar to OPTB
A&L - Approach and Landing
A&P - Attitude and Pointing
A&PS - Administration and Program Support
MSFC Directorate
A&R - Automation and Robotics
A&RC - Application and Resource Control
A&TA - Assembly and Test Area
A&V - Assembly and Verification
View all in NASA